1. SWAT (Special Weapons and Tactics);Davidson,1979
2. Problem-Oriented Policing;Goldstein,1990
3. Tactical intelligence operations and support during a major barricade/hostage event;Hillman;Police Chief,1988
4. Matching police–community expectations: a method of determining police models;Jiao;J Crim Justice,1998
5. Criminal Justice;Kaplan,1982